After a hunter killed her mother, Dorothy was sold as a “mascot” to an amusement park in Cameroon. For the next 25 years she was tethered to the ground by a chain around her neck, taunted, teased, and taught to drink beer and smoke cigarettes for sport.In May 2000 Dorothy—obese from poor diet and lack of exercise—was rescued and relocated along with ten other primates. As her health improved, her deep kindness surfaced. She mothered an orphaned chimp named Bouboule and became a close friend to many others, including Jacky, the group’s alpha male, and Nama, another amusement-park refugee…

Sanaga-Yong was founded in 1999 by veterinarian Sheri Speede (pictured at right, cradling Dorothy’s head; at left is center employee Assou Felix). Operated by IDA-Africa, an NGO, it’s home to 62 chimps who reside in spacious, forested enclosures.